Bumblebee Jasper
Calcite with Arsenic and Sulfur inclusions · Semi-Precious Gemstone / Collector Mineral
Crystal System
Trigonal (though usually found in massive, microcrystalline form)
Mineral Group
Carbonates
Chemical Formula
CaCO3 (with As, S, and MnO2 inclusions)
Formation Process
Hydrothermal (formed in volcanic fumaroles and hot springs)
About This Crystal
A vibrant, tumbled stone featuring distinct banding in shades of yellow, orange, black, and cream. It has a vitreous to waxy luster and is typically opaque.
Physical Characteristics
Color: Yellow, black, and grey/cream; Streak: White; Cleavage: None (in massive form); Fracture: Conchoidal to uneven; SG: 2.6 - 2.8; Fluorescence: Periodic orange/yellow under UV.
Optical Properties
Opaque (no refractive index typically measured for this aggregate); no pleochroism or dispersion visible.
Hardness & Durability
Origin Region
Mount Papandayan, West Java, Indonesia
Hardness & Durability
Mohs hardness 4.0 - 5.0; relatively soft and fragile; poor durability for rings; best for pendants.
Care & Maintenance
Avoid acidic cleaners, ultrasonic cleaners, and steam. Clean with damp cloth only. Contains arsenic; wash hands after handling raw specimens.
Rarity & Value
Uncommon; primarily found in one location; value depends on intensity of banding and color saturation.
Special Characteristics
Distinctive 'bumblebee' stripes caused by layers of sulfur (yellow) and manganese oxides (black).
Lore & History
Historically a recent discovery (1990s); traditionally associated with the Solar Plexus and Sacral chakras for manifestion and confidence.